Interesting and potentially valuable development:
Last night I washed and chewed two rounds of ~4 coleus leaves while drawing (8 total with stems intact)—kept bouncing back and forth between thinking there was an effect and then believing it to be placebo. Ultimately, this felt more like wishful thinking. A few hours later I went to bed.
After four or five hours of sleeping, I entered the longest lucid dream of my life. Furthermore, it was possible to return to it after briefly waking several times. Characters in my dream were vying for my attention, and I was able to say “no, I’m going to do this other thing / make something else happen because it’s only a dream.” I also remember—while still dreaming—my surprise with being able to remain in that state. The major drawback was feeling exhausted this morning.
Obviously requires more testing, but—if it’s repeatable—I’ve never encountered this strong of an impact on dreams with anything else.
Only supplement that I’m taking which could be relevant to this effect is 5-HTP.